Initiation site binding protein and the initiator-like promoter element of mouse mammary tumor virus.
Virology
; 302(1): 185-94, 2002 Oct 10.
Article
en En
| MEDLINE
| ID: mdl-12429527
ABSTRACT
The mouse mammary tumor virus (MMTV) promoter contains an element near its transcription initiation site that is recognized by a protein termed initiation site binding protein (ISBP). Spacing between the TATA box and the ISBP site is important for MMTV promoter function, as altered spacing results in heterogeneity in start site selection in vitro and in vivo. The sequence of the ISBP site is related to initiator elements common in many RNA polymerase II promoters. However, binding of partially purified ISBP to several promoters that contain well-characterized initiator elements was not detected; these promoters included binding sites for a number of previously identified initiator-binding proteins. Partially purified ISBP did, however, bind with high affinity to sequences near the initiation sites of the SV40 major late and adenovirus 2 E1B promoters.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Proteínas Nucleares
/
Regiones Promotoras Genéticas
/
Virus del Tumor Mamario del Ratón
/
Proteínas de Unión al ADN
Límite:
Animals
Idioma:
En
Revista:
Virology
Año:
2002
Tipo del documento:
Article
País de afiliación:
Estados Unidos